An election to the 57th Parliament of the United Kingdom for the constituency area of Plymouth, Sutton and Devonport, held as part of the general election on 8 June 2017.
Labour gain from Conservatives by Luke Pollard with a majority of 6,807 - 13.3% - on a turnout of 66.9%.
Candidates
| Name | Party | Vote | Vote share | Vote change |
| POLLARD, Luke | Lab / Co-op | 27,283 | 53.3% | 16.6% |
| COLVILE, Oliver | Con | 20,476 | 40.0% | 2.2% |
| ELLISON, Richard | UKIP | 1,364 | 2.7% | -11.4% |
| BEWLEY, Henrietta | LD | 1,244 | 2.4% | -1.8% |
| SHEAFF, Daniel | Green | 604 | 1.2% | -5.9% |
| BAMPING, Danny | Ind | 237 | 0.5% | - |
Under section 13(b) of the Representation of the People Act 1985, a candidate gaining 5% or less of the vote share will forfeit their deposit.
An electorate of 76,584, having a valid vote count of 51,208 and an invalid vote count of 83.
Result declared at 04:23 on 9 June 2017.